Early human views on the function of the brain regarded it to be a form of "cranial stuffing" of sorts. In Egypt, from the late Middle Kingdom onwards, in preparation for mummification, the brain was regularly removed, for it was the heart that was assumed to be the seat of intelligence.

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2335

Brain

The heart was historically seen by some as the seat of the soul and the organ responsible for human thought. Even though it is now known that the heart has nothing to do with thought or love, people still carry on using the term "heart" metaphorically when talking about love. When used in this metaphorical sense, the heart is often illustrated as an icon (â™¥).